I beg to differ

I beg to differ/disagree

(formal)

a polite way of saying that you disagree with something that someone has said I beg to differ with Mr Stahl's final assertion.

Name	Pronounced	Usage
Bakewell	['beikwəl]
Ewing	['ju:iŋ]
Ruby	['ru:bi]
Lothar	LO-tahr (German)	German, Ancient Germanic
Awhina	-	Maori
Fausta	-	Italian, Ancient Roman